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Home > Products > Discrete Semiconductor Products > Transistors > FETs, MOSFETs > FETs, MOSFETs

Nexperia USA Inc. BUK6210-55C,118

Name: BUK6210-55C,118
Brand: Nexperia USA Inc.
SKU: BUK6210-55C,118
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: BUK6210-55C,118

Manufacturer:: Nexperia USA Inc.

Category:: FETs, MOSFETs

Package:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Datasheet:: BUK6210-55C,118.pdf

Description:: MOSFET N-CH 55V 78A DPAK

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Product details

Overview

BUK6210-55C,118 from Nexperia is an AEC-Q101-qualified N-channel TrenchMOS FET in DPAK (SOT428) package, designed for automotive power switching with 55 V V_DS, 78 A I_D (T_mb = 25 °C), and 8.1 mΩ R_DS(on) at V_GS = 10 V and T_j = 25 °C. It operates up to 175 °C junction temperature and supports standard/logic-level gate drive in electric power steering and start-stop micro-hybrid systems.

For engineers reviewing the BUK6210-55C,118 datasheet, BUK6210-55C,118 pinout, BUK6210-55C,118 application, or BUK6210-55C,118 equivalent, key selection criteria include avalanche ruggedness (94 mJ unclamped), thermal resistance (1.17 K/W j-mb), gate charge profile (63 nC total at 10 V), and automotive-grade reliability under thermally demanding conditions.

Technical Context

This intermediate-level gate-drive MOSFET uses TrenchMOS technology to achieve low R_DS(on) while maintaining robust avalanche capability and wide gate voltage compatibility (±16 V DC, ±20 V pulsed). Its 175 °C maximum junction temperature and 1.17 K/W junction-to-mounting-base thermal resistance enable high-power operation without active cooling in constrained automotive environments.

The device integrates a monolithic source-drain diode with 0.8–1.2 V forward drop at 25 A and 48 ns reverse recovery time, supporting synchronous rectification and freewheeling in motor control and transmission solenoid drivers. Dynamic parameters-including 19.5 nC Q_GD, 63 nC Q_G(tot), and 7.5 nH internal source inductance-are optimized for fast, low-loss switching in 12 V/24 V battery systems.

Key Specifications

Parameter	Value and Actual Design Meaning
V_DS	55 V - Maximum drain-source blocking voltage compatible with 24 V automotive systems with margin for load dump transients.
I_D (continuous)	78 A at T_mb = 25 °C - Sustained current handling capacity enabling direct drive of high-power solenoids and motors without external heatsinking.
R_DS(on)	8.1 mΩ typ at V_GS = 10 V, T_j = 25 °C - Low conduction loss (<0.63 W at 25 A) critical for thermal management in sealed ECUs.
E_AS	94 mJ unclamped - Avalanche energy rating allowing safe operation during inductive turn-off events in transmission control and EPS actuators.
R_th(j-mb)	1.17 K/W - Thermal resistance from die to mounting base, enabling direct PCB copper pour thermal coupling for compact, high-density layouts.
Q_G(tot)	63 nC at V_GS = 10 V - Gate charge value defining driver strength requirement for <130 ns t_d(off) and 74 ns t_f switching performance.

Pinout & Package

Package: DPAK (SOT428), plastic single-ended surface-mounted package with 3 leads (one lead cropped); mounting base (mb) electrically connected to drain for low-inductance thermal and power path.

Pin/Terminal	Circuit Role	Design Meaning
1 (G)	Gate	Control terminal accepting logic-level (≥4.5 V) or standard (10 V) drive; ±16 V absolute max rating ensures ESD robustness in vehicle harness environments.
2 (D)	Drain	Main power output node; internally bonded to mounting base for minimized loop inductance and direct thermal conduction to heatsink or PCB copper.
3 (S)	Source	Power return path; 7.5 nH internal inductance specified-critical for minimizing voltage overshoot during high-di/dt switching in solenoid drivers.
Mounting Base (mb)	Drain extension / thermal interface	Electrically tied to drain; provides primary thermal path (1.17 K/W) and low-impedance power connection-must be soldered to ≥200 mm² copper area.

Key Features

Feature	Design Value
AEC-Q101 qualified	Validated for automotive use per stress test requirements including HTOL, TC, UHAST, and ESD-ensures reliability in engine bay and chassis modules.
175 °C maximum junction temperature	Enables operation in under-hood locations (e.g., transmission control units) without derating at ambient up to 125 °C when properly mounted.
Logic-level gate drive support	R_DS(on) ≤14.5 mΩ at V_GS = 4.5 V enables direct interfacing with 5 V microcontrollers and ASICs without level-shifting circuitry.
Unclamped avalanche rating	94 mJ energy absorption allows safe turn-off of inductive loads (e.g., 24 V fuel injectors) without external snubbers or clamps.
Low C_iss/C_oss ratio	2990 pF input capacitance vs. 290 pF output capacitance improves Miller immunity and reduces gate drive losses in high-frequency PWM applications.

Applications

Electric Power Steering (EPS)

Start-Stop Micro-Hybrid Control

Use Scenario: High-current H-bridge motor phase switching in column-assist EPS modules.

IC Role / Device Role / Timing Role: Main power switch in bidirectional 12 V motor driver; handles 78 A peak currents during torque assist.

Use Value: 8.1 mΩ R_DS(on) minimizes heat generation in space-constrained steering column enclosures, while 175 °C rating prevents thermal shutdown during sustained assist.

Use Scenario: Intelligent battery disconnect and starter motor pre-charge in 12 V start-stop systems.

IC Role / Device Role / Timing Role: High-side load switch controlling cranking current path; withstands 55 V load dump transients.

Use Value: 94 mJ avalanche energy absorbs inductive kickback from solenoid coils during rapid disconnection, eliminating need for external TVS diodes.

Transmission Solenoid Driver

24 V Electric Brake Actuator

Use Scenario: PWM-controlled proportional pressure regulation in 8-speed automatic transmission valve bodies.

IC Role / Device Role / Timing Role: Low-side switch modulating 24 V solenoid current at 1–10 kHz; requires fast turn-on/off for precise hydraulic response.

Use Value: 16 ns t_d(on) and 74 ns t_f enable tight duty-cycle control; 19.5 nC Q_GD limits Miller-induced shoot-through risk in half-bridge configurations.

Use Scenario: Emergency brake hold and release in electronic parking brake (EPB) systems powered from 24 V commercial vehicle batteries.

IC Role / Device Role / Timing Role: High-current (≥55 A) power switch driving dual-wound brake motors with reverse polarity protection.

Use Value: 55 A continuous current at T_mb = 100 °C supports sustained hold operation in hot chassis environments; AEC-Q101 qualification ensures functional safety compliance.

Equivalent & Alternatives

The following parts are listed as comparable options for similar N-channel automotive MOSFET applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
STL220N4F7AG	40 V V_DS, 220 A I_D, 1.8 mΩ R_DS(on); DFN5x6 package with no exposed drain pad.	Higher current, lower voltage-suited for 12 V only; lacks mounting base for direct heatsinking.	Select when higher peak current and smaller footprint are prioritized over 24 V system compatibility and thermal interface simplicity.
IRF1404ZLPbF	40 V V_DS, 195 A I_D, 3.4 mΩ R_DS(on); TO-220AB package with isolated tab.	Non-automotive grade (no AEC-Q101); higher R_th(j-c) (1.25 K/W) and no avalanche rating.	Acceptable for cost-sensitive industrial 12 V motor drives where automotive qualification and avalanche ruggedness are not required.

Compared with STL220N4F7AG and IRF1404ZLPbF, the BUK6210-55C,118 uniquely balances 55 V rating, AEC-Q101 compliance, DPAK thermal interface, and 94 mJ avalanche capability-making it the only option qualified for thermally aggressive 24 V automotive power switching where reliability and transient robustness are non-negotiable.

Availability

BUK6210-55C,118 is available at Aetrix Electronics and suitable for electric power steering, start-stop micro-hybrid control, and transmission solenoid driver designs requiring stable component supply across multi-year automotive production cycles.

Supply support for BUK6210-55C,118 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Nexperia is a global semiconductor expert specializing in high-performance, reliable discrete, logic, and MOSFET solutions with leadership in automotive and industrial power management.

The BUK6210-55C belongs to Nexperia's TrenchMOS automotive portfolio, engineered specifically for high-reliability, high-current switching in 12 V/24 V vehicle subsystems where thermal resilience and transient robustness are critical.

FAQ

Is BUK6210-55C,118 suitable for 24 V battery systems with load dump transients?

Yes. With a 55 V V_DS rating and AEC-Q101 qualification, it withstands ISO 7637-2 Pulse 5a (load dump up to 60 V) when used with appropriate clamping or layout practices. Its 175 °C junction rating ensures stable operation during transient overvoltage-induced heating.

What is the recommended PCB layout for optimal thermal performance?

Mount the DPAK's metal mounting base directly to ≥200 mm² of 2 oz copper on the component side, connected via ≥6 thermal vias (0.3 mm diameter, 0.8 mm pitch) to inner-layer ground or dedicated thermal planes. Avoid solder mask over the mounting pad to maximize thermal transfer.

Does BUK6210-55C,118 require a gate resistor for automotive EMI compliance?

Yes. A 10 Ω gate resistor is specified in the datasheet for switching characterization (t_d(on), t_f). For EMI reduction in EPS or transmission controllers, a 22–47 Ω resistor combined with a 100 pF RC snubber across G-S is commonly used to dampen ringing without compromising switching speed.

Can this MOSFET replace older BUZ11 or IRFZ44N designs in legacy automotive modules?

Yes-with caveats. Its 55 V rating, 8.1 mΩ R_DS(on), and AEC-Q101 qualification exceed BUZ11 (50 V, 40 mΩ) and IRFZ44N (55 V, 28 mΩ, non-automotive). However, gate charge (63 nC) is higher than IRFZ44N (35 nC), so verify driver capability and switching loss impact in existing layouts.

BUK6210-55C,118 Specifications

Product attributes: Attribute value

Manufacturer:: Nexperia USA Inc.

Series:: TrenchMOS™

Package/Case:: TO-252-3, DPAK (2 Leads + Tab), SC-63

Packaging:: Tape & Reel (TR)

Product Status:: Obsolete

FET Type:: N-Channel

Technology:: MOSFET (Metal Oxide)

Drain to Source Voltage (Vdss):: 55 V

Current - Continuous Drain (Id) @ 25°C:: 78A (Tc)

Drive Voltage (Max Rds On, Min Rds On):: 10V

Rds On (Max) @ Id, Vgs:: 9.6mOhm @ 15A, 10V

Vgs(th) (Max) @ Id:: 2.8V @ 1mA

Gate Charge (Qg) (Max) @ Vgs:: 63 nC @ 10 V

Vgs (Max):: ±16V

Input Capacitance (Ciss) (Max) @ Vds:: 4000 pF @ 25 V

FET Feature:: -

Power Dissipation (Max):: 128W (Tc)

Operating Temperature:: -55°C ~ 175°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q101

Mounting Type:: Surface Mount

Supplier Device Package:: DPAK

BUK6210-55C,118 FAQ

1.How can I place an order for BUK6210-55C,118 through Aetrix?

Please submit a Request for Quotation (RFQ) for BUK6210-55C,118 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for BUK6210-55C,118 reliable?

The price and inventory of BUK6210-55C,118 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for BUK6210-55C,118 is usually 5 days.

3.What payment methods are accepted for BUK6210-55C,118?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for BUK6210-55C,118 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for BUK6210-55C,118?

BUK6210-55C,118 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your BUK6210-55C,118 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for BUK6210-55C,118?

For technical support, including BUK6210-55C,118 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your BUK6210-55C,118 requirements.

6.How does Aetrix verify that BUK6210-55C,118 is sourced from the original manufacturer or authorized distributors?

All BUK6210-55C,118 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that BUK6210-55C,118 meets industry standards.

7.What is the process for return or replacement of BUK6210-55C,118?

All BUK6210-55C,118 units undergo pre-shipment inspection (PSI). If there is an issue with BUK6210-55C,118, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The BUK6210-55C,118 part is unused and in its original packaging.

Return procedure for BUK6210-55C,118:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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